We report on ASCA observations of the low mass X-ray binaries GX 354-0 and KS 1731-260 .
The spectrum of GX 354-0 is best described as a power-law or a Comptonized spectrum with \tau \sim 5 and kT \sim 8 keV and a residual at \sim 6.5 keV .
The residual may be a disk reflection or a Compton broadened Gaussian line from the hot inner ADAF-like coronal region .
The absorption column density to the source is 2.9 \times 10 ^ { 22 } cm ^ { -2 } .
No soft thermal component was detected .
The spectrum from KS 1731-260 is softer and it is best fit with a two component model with a column density of 1.1 \times 10 ^ { 22 } cm ^ { -2 } .
The likely interpretation is emission from a Comptonizing cloud with an optical depth \tau > 12 and either a neutron star or a disk blackbody emission .
We discuss the likely location of the Comptonizing cloud for both sources within the context of several proposed emission models .